Werk #3870: elphase.include: more robust against none type params

Component Checks & agents
Title elphase.include: more robust against none type params
Date Sep 8, 2016
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.2.8p11 1.4.0i1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

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